# Sliders Timer vs BTTF Clock

The clearest difference is rating: BTTF Clock at 4.6 against Sliders Timer's 4.0. BTTF Clock also leads on review sentiment (84% vs 50%) and update cadence (every 6 weeks vs every 21 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BTTF Clock holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: BTTF Clock has 31 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Sliders Timer's written reviews are positive against 84% of BTTF Clock's.

Sliders Timer ships an update every 21 months, BTTF Clock every 6 weeks. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sliders Timer | BTTF Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/sliders-timer/id6447552943/reviews) | **[4.6 (31 ratings)](https://appshunter.io/ios/app/bttf-clock/id6740161583/reviews)** |
| Number of ratings | 4 | **31** |
| Positive reviews | 50.0% of reviews | **84.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 33 MB | 75 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [kenny caldieraro](https://appshunter.io/developer/1670640548) | [Sergei Bazarnik](https://appshunter.io/developer/1722100966) |

## What reviewers say

### Sliders Timer

[App page](https://appshunter.io/ios/app/sliders-timer/id6447552943)

Relive the magic of the 90s cult TV show, Sliders. This app lets you immerse yourself in the universe of Quinn, Rembrandt, Wade, and Arturo. Add a touch of nostalgia to your day or train like your favorite characters.

**Highlights:** 90s TV show nostalgia, Immerse in the Sliders universe, Train like characters, Add a touch of nostalgia

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### BTTF Clock

[App page](https://appshunter.io/ios/app/bttf-clock/id6740161583)

Experience the magic of time travel with a digital recreation of the iconic DeLorean dashboard. This app features customizable date panels, real-time clock updates, and authentic sound effects from the "Back to the Future" trilogy. It's designed to run smoothly on older devices, bringing cinematic nostalgia to your phone or tablet.

**Highlights:** Iconic time display panels, Customizable destination, present, and last departed times, Real-time accurate clock, Interactive interface for date changes, Authentic movie sound effects, Optimized for older devices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sliders Timer free?

Sliders Timer is free to download, with no in-app purchases.

### Is BTTF Clock free?

BTTF Clock is free to download, with no in-app purchases.

### Which has better reviews, Sliders Timer or BTTF Clock?

BTTF Clock is rated higher. Sliders Timer averages 4.0 out of 5 from 4 ratings, while BTTF Clock averages 4.6 from 31 ratings.

### Do Sliders Timer or BTTF Clock have ads?

Neither Sliders Timer nor BTTF Clock shows ads.

### Which is updated more often, Sliders Timer or BTTF Clock?

Sliders Timer ships an update every 21 months, and BTTF Clock every 6 weeks. Most recently, Sliders Timer was updated on October 1, 2026 and BTTF Clock on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*